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Title:
Lubricating oil composition
Document Type and Number:
Japanese Patent JP6055829
Kind Code:
B2
Abstract:
A lubricating oil composition contains a base oil, (A) a phosphate, (B) a thiophosphate and (C) a naphthylamine derivative. The lubricating oil composition is excellent in wear resistance and is unlikely to generate sludge even at a high temperature, and thus is suitable for an oil-impregnated bearing of a high-speed spindle motor provided to DVD-RAM, Blu-ray disc or the like.

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Inventors:
Yumiko Kiko
Application Number:
JP2014524873A
Publication Date:
December 27, 2016
Filing Date:
July 11, 2013
Export Citation:
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Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M141/10; C10M169/04; F16C33/10; H02K7/08
Domestic Patent References:
JP2008045111A
JP2005239897A
JP2005187645A
JP2008280540A
JP2000336384A
JP2002146381A
JP2002003878A
Foreign References:
WO2003106601A1
WO2003078555A1
WO2010064347A1
WO2011077810A1
WO2008032540A1
Attorney, Agent or Firm:
Intellectual Property Office



 
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